# -*- coding: utf-8 -*-
# @Author  : haomh
# @Time    : 2025/10/25 11:22
# @Function:

lyric='交换人生也许忘了第几梦那时我们身处第几号时空'

print(lyric[::])

print(lyric[2:5:2])
print(lyric[2::2])
print(lyric[::-1])
print(lyric[:3:])
print(lyric[10:7:-1])
print(lyric[5:-1:2])
